Ledger-leaf.



JAMES BAKKER, OF DETROIT, MICHIGAN.

LEDGER-LEAF.

Specification of Letters Patent.

Patented May 28, 1907'.

Application filed August 4,1906. Serial Nol 329,258.

To a/ZZ U17/1,0111, it may concern:

Be it known that I, JAMES BAKKER, a citizen of the United States of America, residing at Detroit, in the county of Vayne and State of Michigan, have invented certain new and useful Improvements in Ledger-Leaves, of which the following is a specification, refer ence being had therein to the accompanying drawings.

The invention relates particularly to a trial or balance sheet divided into sections for the names of the individuals, and the accounts or balances respectively, with means in connection with the account sections for permitting the ready erasure of the balances or accounts without injury to the leaf.

It consists in the novel and simple construction of the leaf and in the peculiar combination and arrangement of the parts thereof as hereinafter set forth.

In the drawings illustrating` the invention, Figure l is a erspective view of the preferable form ofeaf or sheet, and Fig. 2 is a vertical central section therethrough.

In construction, the sheet comprises a multiply body A, the plies being preferably three in number, designated by the referenceletters a b c. The sheet may be, and preferably is, provided with a hinge section, as B, and a binding stri C, the particular formation of which will 'be hereinafter described.

D E represent respectively complementary erasing-tablets or strips upon the opposite side of the leaf body and at the outer and inner portions thereof, as plainly indicated in Fig. 1, the arrangement of the strips being such that they will adj oin sections on the leaf face on which the names of the individuals ap ear.

referably the outer or face plies of the body are ruled in such a manner as to divide the same into two sections, as d e, the former being ruled horizontally to receive the names of the individuals, as at f, and the section e both horizontally and vertically to receive the figures. The erasing-strips previously referred to are formed preferably of transparent material, such as celluloid, in very thin strips, and are' superimposed on the sections e, as indicated. In this manner, an erasing surface is provided from which the `figures or numerals may be readily removed, and at the same time the transparency will permit of the vertical and horizontal lines to appear, thus dispensing with the necessity of ruling the celluloid. By this method of construction, the ruling of the account section is protected, and, while the lines are utilized for the account, injury to or erasure thereof is absolutely prevented.

The erasing sections described may be attached to the body in any suitable manner, as by cement or glue. The most desirable manner of fastening, however, is by stitching or by the use of staples or other similar securing devices. I have shown the erasing sections stitched marginally, as at F, to the outer face plies, the stitching extending through the strips and outer plies only. Thus the stitching securing the strip on one .face of the leaf will not extend through the other outer face so as to injure the latter or prevent it from being ruled or written upon. The triple-ply construction of leaf serves not only to materially strengthen the sheet, but the intermediate ply also acts to cover the stitching or securing means, producing a balance sheet with unbroken sections on either side for the names of the individuals, while the erasable account sections are rigidly secured to the leaf so as to avoid possibility of being detached in use.

The binding strip and hinge section previously referred to is preferably composed of a folded strip of linen, as 7L, the extremities of which extend upon opposite sides of the intermediate ply c of the body and are covered by the outer plies, and a stiffening piece or strip, as t, preferably cardboard, arranged within the folded linen, as indicated, and apertured in the usual manner, as at j, to permit of its being bound in book forni,

What I claim as my invention is:

l. A trial er balance sheet, comprising a multi-ply body having an unbroken surface throughout its length and breadth, strips or sections having an erasing surface and of less width than and arranged on the opposite sides of the body at the outer and inner portions thereof, and fastening means cpnnecting the strips with the outer body p les.

2. A trial or balance sheet, comprising a triple ply body having an unbroken surface throughout its length and breadth, transparent strips having an erasing surface and of less width than and arranged upon the opposite sides of the body at the outer and inner portions thereof, and fastening means for the strips extending through the latter, and the outer plies only of the body.

3. A trial or balance sheet, comprising ICO IIO

a three-ply body having an unbroken surface l or sections having an erasing surface and se- Il .throughout its length and breadth, ruled on Cured upon the opposite sides of the body lts opposite faces as described, and oompleand at the outer and inner portions thereor.

mentary transparent Celluloid strips ar- I In testimony whereof I aHiX my signature ranged upon the opposite faces of the body in presence of two witnesses. at the outer and inner portions thereof and JAMES BARKER. stitched marginally to the outer plies only. `Witnessesz 4. A trial or balance sheet7 comprising a JAMES P. BARRY,

multiply body of uniform thickness and strips THos. ODONNELL. 

